Class expressions are powerful. They let you restrict the context for multiple promises in a single statement. What if you want to further control the context of a specific promise? Let’s take a look at a contrived example: /tmp/feature-friday-28-0.cf bundle agent __main__ { reports: "I am …
When promises are actuated, a class can be defined based on its result. For example, if a promise modifies a file’s content, you could define a class that indicates it has been repaired. However, did you know that promises can have multiple outcomes concurrently? That’s right! Native …
Looking for a place to chat about CFEngine? Historically CFEngineers could be found in #cfengine on irc.freenode.net but we moved to #cfengine on irc.libera.chat in 2021. At that time we introduced some chat bridges linking various channels together. The bridge between Matrix and Libera was …
There’s a users promise type for managing local users. However, did you know there is also a custom one for managing local groups? You might have seen it mentioned in the CFEngine Build announcement, the blog post on Managing local groups, or in the announcement supporting custom bodies post. …
Generally, cf-agent runs as a privileged user. But did you know that you can also run as an unprivileged user? A major benefit of running cf-agent unprivileged is the ability to prototype policies during development. However, attempting to execute cf-agent as an unprivileged user without proper …
Ready for more CFEngine on Windows? Join Cody, Craig and Nick for a walk through of some windows related build modules and policy that Craig has been working on. Craig talks about powershell, cmdlets, winget and docker and shows progress towards some new modules for CFEngine Build. Video The video …
You probably know about the def.json Augments file. However, are you familiar with host_specific.json? The def.json Augments file is read, if it’s adjacent to the policy entry. As such, this file is generally distributed as part of the policy set. Its settings apply to all hosts that receive …
You have probably heard of cowsay, but have you heard of agentsay? Just in case you haven’t seen the greatness of cowsay, here is an example: command cowsay "Gee, I wish I was a cf-agent!" output _______________________________ < Gee, I wish I was a cf-agent! > …
Did you know that CFEngine can simply warn about something not being in the desired state? Traditionally with CFEngine, you define your desired state and CFEngine works towards making that happen. Sometimes you might not want CFEngine to take action and instead warn that a given promise wants to …
Who cares about that promise? Today, I want to highlight one of the lightweight knowledge management features in CFEngine. That is, Promisees, also known as Stakeholders. Promisees are references to things that might care about a specific promise. And they can be attached to any promise. Let’s …
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